I've recently gotten an Xbox at Target because they've been nice enough to offer one for $199 and you get a $50 gift card for buying it. I have finally been able to play Mass Effect II, and I must say that I think it is one of my favorite games...of all time.
The only thing I had a problem with in #1 was that if you chose a character that used any sort of powers, you'd have to stop the action and select it, aim it, and then restart the action to use it and it was way too clunky. They sure did fix that in the second one because it played almost like Gears of War with added superpowers. The only problem I have so far with the action and gameplay is that the second highest difficulty was too easy and the hardest difficulty might be too hard because I've had some parts that I had to play about 15 times until I finally won, but that will make it so much better when I finally save the galaxy.
Mass Effect 2 is without a doubt the best single player game I've played on the Xbox 360. What it lacks in depth and replay-ability to an open world game like Oblivion or Grand Theft Auto it more than makes up for with the best story since the Bible. The fact that you should now be able to pick up ME 1 and ME 2 for under $25 total makes it the greatest 2 game set for that kind of cash.